C-reactive protein (CRP) with high-sensitivity measurement

What Is hs-CRP Used For?

High-sensitivity CRP (hs-CRP) is primarily used to assess the risk of cardiovascular events, such as heart attacks or strokes, especially in people without obvious symptoms of inflammation. It can also help monitor chronic conditions like arthritis or other inflammatory diseases by detecting low-level inflammation that might not be detected by other tests alone.

How Is the Test Performed?

A blood sample is drawn from a vein, usually in your arm. The sample is sent to a lab where it is analyzed using a specialized immunoassay method to measure very small amounts of CRP. No special preparation is needed, but fasting may be advised depending on your doctor’s instructions.

What Does a High or Low Result Mean?

Results are interpreted based on your overall health, symptoms, and other test results. A higher hs-CRP level may indicate increased inflammation or cardiovascular risk, while a lower level suggests reduced risk. Your doctor will discuss these results in the context of your medical history and other findings.

Common Causes of Abnormal Results

Elevated hs-CRP can be caused by infections, injuries, autoimmune diseases, or other inflammatory conditions. It may also rise after surgery or during stress. Low levels are less commonly significant unless part of a broader evaluation for chronic inflammation or cardiovascular health.